the nervous system

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the nervous system by Mind Map: the nervous system

1. purpose:

1.1. coordinates all activities of the body, enables the body to respond and adapt to changes both inside and out

2. central nervous system

2.1. brain

2.1.1. cerebrum

2.1.1.1. right hemisphere

2.1.1.2. left hemisphere

2.1.1.3. four lobes

2.1.1.3.1. frontal

2.1.1.3.2. pariental

2.1.1.3.3. temporal

2.1.1.3.4. occpital

2.1.2. cerebellum

2.1.2.1. responsible

2.1.2.1.1. muscle coordination

2.1.2.1.2. balance

2.1.2.1.3. posture

2.1.2.1.4. muscle tone

2.1.3. diencephalon

2.1.3.1. thalamus

2.1.3.1.1. sensory impulses to the cerebrum

2.1.3.2. hypothalamus

2.1.3.2.1. controls and regulates temperatures, appetite, water balance,sleep and blood vessel constriction and dilation

2.1.4. midbrain

2.1.4.1. responsible

2.1.4.1.1. eyes and auditory reflexes

2.1.5. pons

2.1.5.1. responsible

2.1.5.1.1. certain reflex actions

2.1.6. medulla oblongata

2.1.6.1. connects to the spinal cords

2.1.6.2. regulates

2.1.6.2.1. heart and blood vessel functions

2.1.6.2.2. digestion

2.1.6.2.3. respiration

2.1.6.2.4. swallowing

2.1.6.2.5. coughing

2.1.6.2.6. sneezing

2.1.6.2.7. blood pressure

2.2. spinal cord

2.2.1. link between the brain and the nerves in the rest of the body

2.2.2. 4 regions

2.2.2.1. cervical

2.2.2.2. thoracic

2.2.2.3. lumbar

2.2.2.4. spinal nerves

2.2.3. afferent

2.2.3.1. body to the brain

2.2.4. efferent

2.2.4.1. brain to the body

3. peripheral nervous system

3.1. somatic

3.1.1. motor and sensory organs and skeletal muscles

3.1.1.1. efferent motor system

3.1.1.1.1. conducting outward

3.1.1.2. afferent sensory neurons

3.1.1.2.1. conducting inward

3.2. autonomic

3.2.1. symphatetic nervous system

3.2.1.1. revs up the body

3.2.2. parasymphatetic nervous system

3.2.2.1. bring all the systems back to normal